diff --git a/src/main/java/de/ids_mannheim/korap/config/AuditingHandler.java b/src/main/java/de/ids_mannheim/korap/config/AuditingHandler.java
new file mode 100644
index 0000000..4daf76c
--- /dev/null
+++ b/src/main/java/de/ids_mannheim/korap/config/AuditingHandler.java
@@ -0,0 +1,8 @@
+package de.ids_mannheim.korap.config;
+
+/**
+ * @author hanl
+ * @date 17/06/2015
+ */
+public class AuditingHandler {
+}
diff --git a/src/main/java/de/ids_mannheim/korap/config/AuthenticationHandler.java b/src/main/java/de/ids_mannheim/korap/config/AuthenticationHandler.java
new file mode 100644
index 0000000..74a3a11
--- /dev/null
+++ b/src/main/java/de/ids_mannheim/korap/config/AuthenticationHandler.java
@@ -0,0 +1,8 @@
+package de.ids_mannheim.korap.config;
+
+/**
+ * @author hanl
+ * @date 17/06/2015
+ */
+public class AuthenticationHandler {
+}
diff --git a/src/main/java/de/ids_mannheim/korap/config/EncryptionHandler.java b/src/main/java/de/ids_mannheim/korap/config/EncryptionHandler.java
new file mode 100644
index 0000000..cab7f6d
--- /dev/null
+++ b/src/main/java/de/ids_mannheim/korap/config/EncryptionHandler.java
@@ -0,0 +1,8 @@
+package de.ids_mannheim.korap.config;
+
+/**
+ * @author hanl
+ * @date 18/06/2015
+ */
+public class EncryptionHandler {
+}
diff --git a/src/main/java/de/ids_mannheim/korap/config/PluginHandler.java b/src/main/java/de/ids_mannheim/korap/config/PluginHandler.java
new file mode 100644
index 0000000..b0c473b
--- /dev/null
+++ b/src/main/java/de/ids_mannheim/korap/config/PluginHandler.java
@@ -0,0 +1,8 @@
+package de.ids_mannheim.korap.config;
+
+/**
+ * @author hanl
+ * @date 17/06/2015
+ */
+public class PluginHandler {
+}
diff --git a/src/main/java/de/ids_mannheim/korap/config/ProtectedResource.java b/src/main/java/de/ids_mannheim/korap/config/ProtectedResource.java
new file mode 100644
index 0000000..d93e4f0
--- /dev/null
+++ b/src/main/java/de/ids_mannheim/korap/config/ProtectedResource.java
@@ -0,0 +1,8 @@
+package de.ids_mannheim.korap.config;
+
+/**
+ * @author hanl
+ * @date 18/06/2015
+ */
+public class ProtectedResource {
+}
diff --git a/src/main/java/de/ids_mannheim/korap/config/ResourceHandler.java b/src/main/java/de/ids_mannheim/korap/config/ResourceHandler.java
new file mode 100644
index 0000000..c354a01
--- /dev/null
+++ b/src/main/java/de/ids_mannheim/korap/config/ResourceHandler.java
@@ -0,0 +1,8 @@
+package de.ids_mannheim.korap.config;
+
+/**
+ * @author hanl
+ * @date 18/06/2015
+ */
+public class ResourceHandler {
+}
diff --git a/src/main/java/de/ids_mannheim/korap/config/UserDbHandler.java b/src/main/java/de/ids_mannheim/korap/config/UserDbHandler.java
new file mode 100644
index 0000000..73fcc56
--- /dev/null
+++ b/src/main/java/de/ids_mannheim/korap/config/UserDbHandler.java
@@ -0,0 +1,8 @@
+package de.ids_mannheim.korap.config;
+
+/**
+ * @author hanl
+ * @date 17/06/2015
+ */
+public class UserDbHandler {
+}
diff --git a/src/main/java/de/ids_mannheim/korap/exceptions/Message.java b/src/main/java/de/ids_mannheim/korap/exceptions/Message.java
deleted file mode 100644
index f9021b4..0000000
--- a/src/main/java/de/ids_mannheim/korap/exceptions/Message.java
+++ /dev/null
@@ -1,109 +0,0 @@
-package de.ids_mannheim.korap.exceptions;
-
-import com.fasterxml.jackson.annotation.JsonIgnore;
-import com.fasterxml.jackson.databind.JsonNode;
-import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.databind.node.ArrayNode;
-
-import java.util.Iterator;
-import java.util.LinkedList;
-
-/**
- * @author hanl
- * @date 03/12/2014
- */
-public class Message implements Cloneable {
-
-    ObjectMapper mapper = new ObjectMapper();
-    private String msg;
-    private int code = 0;
-    private LinkedList<String> parameters;
-
-    public Message(int code, String msg) {
-        this.code = code;
-        this.msg = msg;
-    }
-
-    public Message() {
-    }
-
-    @JsonIgnore
-    public Message setMessage(String msg) {
-        this.msg = msg;
-        return this;
-    }
-
-    @JsonIgnore
-    public String getMessage() {
-        return this.msg;
-    }
-
-    @JsonIgnore
-    public Message setCode(int code) {
-        this.code = code;
-        return this;
-    }
-
-    @JsonIgnore
-    public int getCode() {
-        return this.code;
-    }
-
-    public Message addParameter(String param) {
-        if (this.parameters == null) {
-            this.parameters = new LinkedList();
-        }
-
-        this.parameters.add(param);
-        return this;
-    }
-
-    public Object clone() throws CloneNotSupportedException {
-        Message clone = new Message();
-        if (this.msg != null) {
-            clone.msg = this.msg;
-        }
-
-        clone.code = this.code;
-        if (this.parameters != null) {
-            Iterator i$ = this.parameters.iterator();
-
-            while (i$.hasNext()) {
-                String p = (String) i$.next();
-                clone.addParameter(p);
-            }
-        }
-
-        return clone;
-    }
-
-    public JsonNode toJSONnode() {
-        ArrayNode message = this.mapper.createArrayNode();
-        if (this.code != 0) {
-            message.add(this.getCode());
-        }
-
-        message.add(this.getMessage());
-        if (this.parameters != null) {
-            Iterator i$ = this.parameters.iterator();
-
-            while (i$.hasNext()) {
-                String p = (String) i$.next();
-                message.add(p);
-            }
-        }
-
-        return message;
-    }
-
-    public String toJSON() {
-        String msg = "";
-
-        try {
-            return this.mapper.writeValueAsString(this.toJSONnode());
-        } catch (Exception var3) {
-            msg = ", \"" + var3.getLocalizedMessage() + "\"";
-            return "[620, \"Unable to generate JSON\"" + msg + "]";
-        }
-    }
-}
diff --git a/src/main/java/de/ids_mannheim/korap/exceptions/Messages.java b/src/main/java/de/ids_mannheim/korap/exceptions/Messages.java
deleted file mode 100644
index 0729448..0000000
--- a/src/main/java/de/ids_mannheim/korap/exceptions/Messages.java
+++ /dev/null
@@ -1,167 +0,0 @@
-package de.ids_mannheim.korap.exceptions;
-
-import com.fasterxml.jackson.annotation.JsonIgnore;
-import com.fasterxml.jackson.databind.JsonNode;
-import com.fasterxml.jackson.databind.node.ArrayNode;
-import de.ids_mannheim.korap.utils.JsonUtils;
-
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.List;
-
-/**
- * @author hanl
- * @date 03/12/2014
- */
-public class Messages implements Cloneable, Iterable<Message> {
-
-    private ArrayList<Message> messages = new ArrayList(3);
-
-    public Messages() {
-    }
-
-    public Iterator<Message> iterator() {
-        return new Messages.MessageIterator();
-    }
-
-    public Message add(int code, String message, String... terms) {
-        Message newMsg = new Message(code, message);
-        this.messages.add(newMsg);
-        if (terms != null) {
-            String[] arr$ = terms;
-            int len$ = terms.length;
-
-            for (int i$ = 0; i$ < len$; ++i$) {
-                String t = arr$[i$];
-                newMsg.addParameter(t);
-            }
-        }
-
-        return newMsg;
-    }
-
-    public Message add(Message msg) {
-        try {
-            Message e = (Message) msg.clone();
-            this.messages.add(e);
-            return e;
-        } catch (CloneNotSupportedException var3) {
-            return (Message) null;
-        }
-    }
-
-    public Message add(JsonNode msg) throws KorAPException {
-        if (msg.isArray() && msg.has(0)) {
-            Message newMsg = new Message();
-            short i = 1;
-            if (msg.get(0).isNumber()) {
-                newMsg.setCode(msg.get(0).asInt());
-                if (!msg.has(1)) {
-                    throw new KorAPException(750, "Passed notifications are not well formed", null);
-                }
-
-                newMsg.setMessage(msg.get(1).asText());
-                ++i;
-            } else {
-                newMsg.setMessage(msg.get(0).asText());
-            }
-
-            while (msg.has(i)) {
-                newMsg.addParameter(msg.get(i++).asText());
-            }
-
-            this.add((Message) newMsg);
-            return newMsg;
-        } else {
-            throw new KorAPException(750, "Passed notifications are not well formed", null);
-        }
-    }
-
-    public Messages add(Messages msgs) {
-        try {
-            Iterator e = msgs.getMessages().iterator();
-
-            while (e.hasNext()) {
-                Message msg = (Message) e.next();
-                this.add((Message) ((Message) msg.clone()));
-            }
-        } catch (CloneNotSupportedException var4) {
-            ;
-        }
-
-        return this;
-    }
-
-    public Messages clear() {
-        this.messages.clear();
-        return this;
-    }
-
-    public int size() {
-        return this.messages.size();
-    }
-
-    @JsonIgnore
-    public Message get(int index) {
-        return index >= this.size() ? (Message) null : (Message) this.messages.get(index);
-    }
-
-    @JsonIgnore
-    public List<Message> getMessages() {
-        return this.messages;
-    }
-
-    public Object clone() throws CloneNotSupportedException {
-        Messages clone = new Messages();
-        Iterator i$ = this.messages.iterator();
-
-        while (i$.hasNext()) {
-            Message m = (Message) i$.next();
-            clone.add((Message) ((Message) m.clone()));
-        }
-
-        return clone;
-    }
-
-    public JsonNode toJSONnode() {
-        ArrayNode messageArray = JsonUtils.createArrayNode();
-        Iterator i$ = this.messages.iterator();
-
-        while (i$.hasNext()) {
-            Message msg = (Message) i$.next();
-            messageArray.add(msg.toJSONnode());
-        }
-
-        return messageArray;
-    }
-
-    public String toJSON() {
-        String msg = "";
-
-        try {
-            return JsonUtils.toJSON(this.toJSONnode());
-        } catch (Exception var3) {
-            msg = ", \"" + var3.getLocalizedMessage() + "\"";
-            return "[620, \"Unable to generate JSON\"" + msg + "]";
-        }
-    }
-
-    private class MessageIterator implements Iterator<Message> {
-        int index = 0;
-
-        public MessageIterator() {
-        }
-
-        public boolean hasNext() {
-            return this.index < Messages.this.messages.size();
-        }
-
-        public Message next() {
-            return (Message) Messages.this.messages.get(this.index++);
-        }
-
-        public void remove() {
-            Messages.this.messages.remove(this.index);
-        }
-    }
-}
diff --git a/src/main/java/de/ids_mannheim/korap/interfaces/UserControllerIface.java b/src/main/java/de/ids_mannheim/korap/interfaces/AuthenticationManagerIface.java
similarity index 92%
rename from src/main/java/de/ids_mannheim/korap/interfaces/UserControllerIface.java
rename to src/main/java/de/ids_mannheim/korap/interfaces/AuthenticationManagerIface.java
index 67d6545..a3fb44a 100644
--- a/src/main/java/de/ids_mannheim/korap/interfaces/UserControllerIface.java
+++ b/src/main/java/de/ids_mannheim/korap/interfaces/AuthenticationManagerIface.java
@@ -11,12 +11,13 @@
  * @author hanl
  * @date 15/06/2015
  */
-public abstract class UserControllerIface {
+public abstract class AuthenticationManagerIface {
 
     private Map<String, AuthenticationIface> providers;
 
     //todo: test if constr actually called
-    public UserControllerIface() {
+    public AuthenticationManagerIface() {
+        System.out.println("TEST CONSTRUCTOR CALL");
         this.providers = new HashMap<>();
     }
 
diff --git a/src/main/java/de/ids_mannheim/korap/plugins/PluginManager.java b/src/main/java/de/ids_mannheim/korap/plugins/PluginManager.java
deleted file mode 100644
index 262985f..0000000
--- a/src/main/java/de/ids_mannheim/korap/plugins/PluginManager.java
+++ /dev/null
@@ -1,31 +0,0 @@
-package de.ids_mannheim.korap.plugins;
-
-import de.ids_mannheim.korap.interfaces.EntityHandlerIface;
-import de.ids_mannheim.korap.interfaces.UserControllerIface;
-
-import java.util.HashMap;
-import java.util.Map;
-
-/**
- * @author hanl
- * @date 15/06/2015
- */
-// via spring a list of implementations is inserted, for which there will be default constructors loaded
-public class PluginManager {
-
-    private Map<String, Class> plugins;
-
-    public PluginManager() {
-        plugins = new HashMap<>();
-    }
-
-    public void loadPluginInterfaces() {
-        plugins.put("userdb", EntityHandlerIface.class);
-        plugins.put("usercontroller", UserControllerIface.class);
-        plugins.put("encrytion", EntityHandlerIface.class);
-    }
-
-    public void register(String key, Class cl) {
-        plugins.put(key, cl);
-    }
-}
diff --git a/src/main/java/de/ids_mannheim/korap/resource/LayerMapper.java b/src/main/java/de/ids_mannheim/korap/resource/LayerMapper.java
new file mode 100644
index 0000000..4b31330
--- /dev/null
+++ b/src/main/java/de/ids_mannheim/korap/resource/LayerMapper.java
@@ -0,0 +1,91 @@
+package de.ids_mannheim.korap.resource;
+
+import de.ids_mannheim.korap.user.UserSettings;
+
+/**
+ * @author hanl
+ * @date 14/10/2014
+ */
+public class LayerMapper {
+
+    private UserSettings settings;
+    private ExtConfiguration config;
+
+    public LayerMapper(UserSettings settings) {
+        this.settings = settings;
+        this.config = ExtensionBeans.getConfiguration();
+    }
+
+    /**
+     * find foundry entry in settings specific settings. Includes a call to #translateLayer to get the
+     * correct mapping for the layer denomination!
+     *
+     * @param layer
+     * @return
+     */
+
+    //todo: make mapping configurable!
+    public String findFoundry(String layer) {
+        if (settings != null) {
+            switch (translateLayer(layer.toLowerCase().trim())) {
+                case "d":
+                    return settings.getDefaultRelfoundry();
+                case "c":
+                    return settings.getDefaultConstfoundry();
+                case "pos":
+                    return settings.getDefaultPOSfoundry();
+                case "lemma":
+                    return settings.getDefaultLemmafoundry();
+                case "surface":
+                    return "opennlp";
+                default:
+                    // if the layer is not in this specific listing, assume a default layer
+                    // like orth or other tokenization layers
+                    return "opennlp";
+            }
+        }else {
+            switch (translateLayer(layer.toLowerCase().trim())) {
+                case "d":
+                    return config.getDefault_dep();
+                case "c":
+                    return config.getDefault_const();
+                case "pos":
+                    return config.getDefault_pos();
+                case "lemma":
+                    return config.getDefault_lemma();
+                case "surface":
+                    return config.getDefault_surface();
+                default:
+                    // if the layer is not in this specific listing, assume a default layer
+                    // like orth or other tokenization layers
+                    return "opennlp";
+            }
+        }
+    }
+
+    // relevance: map to access control id references. p is usually mapped to pos, l to lemma, etc.
+    public String translateLayer(String layer) {
+        switch (layer.toLowerCase().trim()) {
+            //            case "pos":
+            //                return "p";
+            //            case "lemma":
+            //                return "l";
+            case "m":
+                return "msd";
+            //todo the orth layer does not need a foundry entry
+            case "orth":
+                return "surface";
+            case "t":
+                return "surface";
+            case "const":
+                return "c";
+            case "p":
+                return "pos";
+            case "l":
+                return "lemma";
+            default:
+                return layer;
+        }
+    }
+
+}
diff --git a/src/main/java/de/ids_mannheim/korap/resource/LayerProcessor.java b/src/main/java/de/ids_mannheim/korap/resource/LayerProcessor.java
new file mode 100644
index 0000000..78fd005
--- /dev/null
+++ b/src/main/java/de/ids_mannheim/korap/resource/LayerProcessor.java
@@ -0,0 +1,8 @@
+package de.ids_mannheim.korap.resource;
+
+/**
+ * @author hanl
+ * @date 19/06/2015
+ */
+public class LayerProcessor {
+}
diff --git a/src/main/java/de/ids_mannheim/korap/resource/NodeProcessor.java b/src/main/java/de/ids_mannheim/korap/resource/NodeProcessor.java
new file mode 100644
index 0000000..4f27347
--- /dev/null
+++ b/src/main/java/de/ids_mannheim/korap/resource/NodeProcessor.java
@@ -0,0 +1,8 @@
+package de.ids_mannheim.korap.resource;
+
+/**
+ * @author hanl
+ * @date 19/06/2015
+ */
+public class NodeProcessor {
+}
diff --git a/src/main/java/de/ids_mannheim/korap/resource/RewriteProcessor.java b/src/main/java/de/ids_mannheim/korap/resource/RewriteProcessor.java
new file mode 100644
index 0000000..9950266
--- /dev/null
+++ b/src/main/java/de/ids_mannheim/korap/resource/RewriteProcessor.java
@@ -0,0 +1,8 @@
+package de.ids_mannheim.korap.resource;
+
+/**
+ * @author hanl
+ * @date 19/06/2015
+ */
+public class RewriteProcessor {
+}
diff --git a/src/test/java/RewriteTest.java b/src/test/java/RewriteTest.java
new file mode 100644
index 0000000..70bf72a
--- /dev/null
+++ b/src/test/java/RewriteTest.java
@@ -0,0 +1,6 @@
+/**
+ * @author hanl
+ * @date 18/06/2015
+ */
+public class RewriteTest {
+}